To help improve speed, consider crossing out the lines that repeat in RC answers. For example, if you have four answers and they all start out with, B is a Native American blah blah blah, and then goes into the differences, straight up cross out the extra. Its extra reading you do every single time you read an answer and it slows down your ability to differentiate among the answers. Also, things between commas can pretty much be skipped in the actual passage. Example: Helen Keller, a blind girl, said blah blah blah. "a blind girl" is like a side note and can totes be skimmed if not skipped altogether.